In Cylinder Pressure Transducer Testing- Mercedes Misfire Diag

[@pedrogaldamez7864]

Initially i thought your teaching style was slow but I have come to love it. Your level of comprehension is more in depth and we can all tell. Please keep it coming

[@DTEAuto]

Thank you Pedro! Yes I try to explain it as best I can for many to follow and understand what I'm showing. This Mercedes video was one of my most in depth and very detailed one, The other videos are interesting as well and I will do my best to keep them coming. Thank you for watching!

[@acherramodikwe388]

I always fall in love with your demonstrations. They are so developmental. God bless your work.

[@DTEAuto]

Glad you like them! and thank you for watching

[@astrogate1]

I loved how you combined the pressure and pulsing transducers. Thank you!

[@DTEAuto]

Thank you for watching

[@cdsfleetrepairs]

It’s amazing what one can learn from viewing different approaches to a problem, trust me I’ll will be watching more of your work. The time you took not just to explain to yourself but allowed us viewers to see some of the best analyses that I’ve seen in a long time. Thank you for sharing this awesome diagnosis

[@DTEAuto]

I truly appreciate that; this one is one of my proudest put together analysis on incylinder. It was a turning point diag for me because to finally after so many days and hours of sitting in front of a computer trying to make sense of all the captures and to finally see what was happening was truly eye opening for me and I felt I learned the hardest way possible but fed me so much great information to tackle any other crazy incylinder capture to diagnose. When people ask questions about incylinder testing, this one always comes up in my head that I wish more people could see. But maybe slowly it will reach the right minds and help others out there curious on this testing. I am glad to hear you found it and actually got something good out of it. Thank you for watching and share with like-minded individuals.

[@djosbun]

Thank you for sharing your thought process and technique on this diag, Sadel. I love these long videos as it really allows us to think things through during your explanation.

[@DTEAuto]

Thanks Dave, glad you enjoyed it and can pick up something from it, thank you for watching

[@rafaelgarcia-xk7eu]

Hi, I’m no expert here, so correct me if I’m wrong. But when you have a misfire, doesn’t matter if it’s lack of spark, fuel or compression, you will always get an anomaly (engine running) in the exhaust pattern. If you look at around 11:45 in the video, you see two downward spikes in between firing lines. It depends on which sensor you are using, some spike up on a misfire and some spike down. Also they seem to be “timed” to the missing cylinders. Thanks for the video. I found the math channel very interesting, I’ll look further into that.

[@dougsautoservice7203]

this was by far the best example of waveform analysis

[@estatesrecords]

It was a blessing for me to find your channel, thank you for your contents.

[@DTEAuto]

Estatesrecords, I'm glad to hear, there's a lot of good info in all of my posts, hope you pick up some good tips, thank you for watching.

[@robramsay3878]

Thanks for making this video, it was great one. Informative educational and enjoyable hearing you reasoning out the root problem. I dont know why these diag videos dont get more views. Thanks again

[@DTEAuto]

Rob, thank you for the compliments, and thank you for watching, as far as the views go, I believe it boils down to how often it's shared and put out there. Other than that I hope you picked up some good info

[@amarghani]

it is a long video but it is worthed. I learned a lot. thank you for sharing.

[@DTEAuto]

yes was definitely a long one for sure, but did pack a lot of useful information related to pressure testing , glad you liked and thanks for watching

[@DuaneDonaldson]

You mentioned a time when the intake valve was opening within the intake stroke region. Remember that valve overlap typically happens in this order, the intake valve starts to open before 360* and the exhaust valve closes after 360*, one purpose of valve overlap is to create suction from the escaping exhaust from the early opening intake, this is called scavenge and it starts the air to swirl within the cylinder to assist with air fuel mixture. Your tool creates a waveform signature, other tools create their own distinct signature, some are better than others at showing valve overlap problems. When the intake valve opens on the end of the exhaust stroke and based on poor timing, some tools will show this excessive pressure going back into the intake manifold if the intake valve is advanced or other problems creating the valve to open early. Some signatures are so clean and nice that you can even see a simple valve adjustment issue of only thousandths of an inch adjustment. Yes I am aware of different manufacturers having different cam lobe profiles and different overlap degrees but mostly the intake valve is already opening prior to 360*, thank you very much for indepth video analysis like this one, cheers.

[@DTEAuto]

Thanks for the detailed input, and small tip just off of captures I have seen.... a lot of euro's with their phasing and variable lift (valvetronic, etc..) they open the intake valve way late after the 360, I've gotten used to now of not going by the "old" rules of thumbs because of seeing so many "unconventional" timing at different ranges but it's because they can control the valves so finite that I just take each engine as it's own breathing strategy specs

[@eacherenkeka]

Very well explain diagnosis brother! A lot to learn in your channel! great job!

[@DTEAuto]

Thanks Keka, and thank you for watching

[@DirtyWorm12]

Very nice, great videos! Love the knowledge and the explanationss. Cool you learned something, never stop learning with in cylinder testing

[@DTEAuto]

Glad you enjoyed it! Thanks for watching

[@Hscope-User]

Thank you for sharing , I really like the way you explain and went about every little detail and more the comparison with the know good 👍👍👍👍👍👍😄

[@DTEAuto]

Ramon, thank you ... and I thought it was important to look at a known good to be able to find out what ultimately was faulted, thanks for watching

[@nickayivor8432]

ScannerDanner was right about DTech Engineering KNOWLEDGEABLE DTech Engineering My teacher DTech Engineering Thank you very much for sharing your knowledge with us Take care and have great day KNOWLEDGEABLE DTech Engineering From Nick Ayivor from London England UK 🇬🇧

[@RayonsAutoDiagnostics]

Thanks for making this video bro, it is appreciated

[@DTEAuto]

Thank you for watching, this one has a ton of information in it for incyl testnig and intake pulse waveform testing

[@sivucit]

one more Q. i am using piezoelectric crystal plate pressure sensor, during intake / exhaust you will see peak and valley. does that peak means vaccum and valley means pressure both for intake and exhaust

[@billshaughnessy3955]

this is next level amazing.

[@DTEAuto]

Bill...Glad you liked it and thanks for watching

[@Username64870]

Your Are a Good Diagnostician. so I Subscribed.....!

[@DTEAuto]

Thank you Dean, much appreciated and hope you learn from the content, thanks for watching!

[@JoelAutomotiveInaction]

Great content,thanks for sharing

[@DTEAuto]

Joel, thank you and I hope you found it informative, thanks for watching

[@IamReadyToRock]

Increíble👍🏾👍🏾👍🏾

[@sivucit]

Hi, I subscribed your channel.. Appreciate iif you can answer my questions. 1. I know how to do the compression test using pico, 2. know how to do cylinder inpressure test 2. know how to use pressure pulse test, intake and exhaust .. Question 1. I dont know whenn to use for what for below scenarios. 1. Mis fire cylinder. yes i can use PICO compression test and with synch on, i can find out which cylinder is misfringg.. if i can findout which cylinder is misfiring, what value it will add to do cylinder presssure test ?? please advise. 2.leaky head gastket: I beleve we can find out leaky head gasket using pressure pulse tester. apart from that, what value it add for finding misfire cylinder ??.. 3. stuck intake / exhaust valves. i can use pressure pulse tester to check this .. do you agree, if so what is the use of in pressure cylinder tester and when would i use it... i dont see a reason when this in pressure cylinder tester will come to save me.??

[@prashanshan7125]

Hi. I have same intake waveform due to clogged injectors..it was confusing..

[@sweetteehoney3654]

What should the proper pressure numbers read for each cylinder for this 2013 GL 450 engine in your diagnostics video?

[@DTEAuto]

unfortunately I don't have a good figure

[@gcmd5852]

Great explanation, Them intake waveforms definitely get crazy when there's a valve leak then even worse the more cylinders are involved. Have you tried the piston overlay program?

[@DTEAuto]

Hey George, no I have not tried the piston overlay, I have seen it in use from others but I just haven't messed with it , thank you for watching and hope you picked up something from it

[@alekstolstoi]

what brand of pressure transducer did you use?

[@DTEAuto]

it was a combination of multiple ones I have gathered, some ats brand ones, some snap on ones, and actually some custom ones I had made.

[@glennallen7129]

Thanks for the video! I was wondering if you do any training in person for in cylinder and pulses? That’s something that I need to get good at. You seem very smart

[@DTEAuto]

Glenn, thanks for watching first and foremost... as far as providing training.... yes I am looking to set something up as far as training as interest keeps growing.

[@glennallen7129]

@@DTEAuto I’ll make sure to be able to attend to one if you’re going to do it in the future! Where do you think you’d announce it if you were to do one so I can make sure to know about it.

[@DTEAuto]

Glenn....email me and I will update you when set something up ([e-mail])